Triple waxing attachment for thread winding machines



1967 5. DE MARTINI ETAL 3,

TRIPLE WAXING ATTACHMENT FOR THREAD WINDING MACHINES Filed Nov. 19, 1965 5 Sheets-Sheet 1 INVENTORS Stephen .De Narzim' 9 Jose ah V 6am to AUflM/EYS 1967 5. DE MARTINI ETAL 3,356,305

TRIPLE WAXING ATTACHMENT FOR THREAD WINDING MACHINES 5 Sheets-sheet 7 Filed Nov. 19, 1965 INVENTORS Stephen De Wadi/15 Jose ah AWURNfZ Dec. 5, 1967 5. DE MARTINI ETAL TRIPLE WAXING Filed Nov. 19, 1965 ATTACHMENT FOR THREAD WINDING MACHINES Sweets- 7 50 a Q I 5 55 116 Z 56 E 5 2 E l a INVENTORS Step/2e .De Nani/16 Josgoh 1 Garizo ATTURNE 5 1967 5. DE MARTINI ETAL 3,356,305

TRIPLE WAXING ATTACHMENT FORTHREAD WINDING MACHINES File d Nov. 19, 1965 5 Sheets-Sheet 4 INVENTORS fife she fie Wadi/16 Joseph V. 6am to my FOR THREAD WINDING MACHINES Dec. 5, 1967 5. DE MARTINI ETAL TRI PLE WAXlNG ATIA' 5 Sheets-Sheet Filed Nov. 19, 1965 INVENTOR r2 United States Patent 3,356,305 TRIPLE WAXING ATTACHlVIENT FOR THREAD WINDING MACHINES Stephen De Martini, 126 Hillcrest Place, and Joseph V. Garito, 9029 Barr Place, both of North Bergen, NJ. 07047 Filed Nov. 19, 1965, Ser. No. 508,691 7 Claims. (Cl. 24235.5)

ABSTRACT OF THE DISCLOSURE A triple waxing attachment for thread winding machines having bracket means for holding three wax spools for engagement with each thread being wound. Two threads are simultaneously wound on each spindle of the winding machine with one thread passing over a length counter.

This invention relates generally to thread winding machinery. More specifically it relates to thread waxing units for such machines and particularly to the universal thread winding machine designated as Leesona No. 50.

It is generally well known to those skilled in the textile art that thread as presently manufactured must be wax coated before it is used so to prevent breakage thereof when used upon a modern high speed sewing machine. This is particularly true in the garment manufacture industry where sewing machines operate at high speed over relatively long hours of time and wherein the wax coated thread serves as a lubricant to keep the sewing machine needle in a cool condition. The needle thus cooled prevents breaking of the thread. Nevertheless depending upon the thread materials used and the materials being sewn together with the increased high speed operation a further refinement has been wanting to create an improved thread more suitable to modern sewing machines.

Accordingly it is a principal object of the present invention to provide a novel thread waxing unit adaptable for securement to a universal thread winder having self contained means for applying an increased amount of wax to the thread and wherein the wax is more evenly distributed over the entire thread surface thereby producing a thread having increased lubricant characteristics so to maintain sewing machine needle operating at high speed from becoming overheated and thereby preventing the thread from becoming burned by the needle and thus preventing thread breakage.

Another object of the present invention is to provide a novel thread waxing unit adaptable for securement to a nniversal threadwinder and which incorporates a plurality of wax spools wherein the thread is in contact engagement with each one of the several wax spools.

Another object of the present invention is to provide a novel thread waxing unit wherein the wax spools engage their thread upon opposite sides in order to produce a better distribution of the Wax over the entire threa'd surface.

Yet another object of the present invention is to provide a novel thread waxing unit adaptable for securement to a universal thread winder wherein the thread is quickly and easily threaded among the several wax spools.

A further object is to provide a novel adapter bracket for supporting the waxing unit upon a conventional universal thread Waxing machine of Leesona No. 50 model without the necessity of altering the manufacture of that machine to accommodate the new waxing unit.

Another further object of the present invention is to provide an improved waxing unit having an adapter waxing bracket which may be readily detached from the 3,356,305 Patented Dec. 5, 1967 thread winding machine and the machine may be reset for operation with a single wax spool if so preferred.

Other objects of the present invention are to provide a novel waxing unit and adapter bracket for a universal thread winding machine which is relatively simple in design, inexpensive to manufacture, rugged in construction, easy to use and eflicient in operation.

These and other objects would be readily apparent upon a study of the following specification and accompanying drawings wherein FIGURE 1 is a fragmentary front elevational view of a universal thread winder machine shown incorporating the present invention,

FIG. 2 is a cross sectional view taken on the line 2--2 of FIG. 1,

FIG. 3 is a front perspective view of one of the thread winder machine stations shown incorporating the present invention, wherein FIG. 4 is an enlarged front elevational view partly in cross section taken along line 4-4 of FIG. '3,

FIG. 5 is an elevational View taken on the line 55 of FIG. 4,

FIG. 6 is a fragmentary plan view taken along the line 6-6 of FIG. 4, and

FIG. 7 is an enlarged perspective view of the adapter bracket which forms a part of the present invention and showing the waxing unit in phantom lines.

Referring now to the drawings in detail the numeral 10 represents an improved waxing unit for universal thread winder machines according to the present invention wherein there is included an adapter bracket 11 where thread waxing unit 10 is mounted upon a universal thread winding machine 12 which in the drawings is shown to be a Leesona No. 50 machine. This machine is comprised of a plurality of stations 13, each of which has a capacity for winding one or two threads.

The machine 12 includes a supporting frame 14 composed of vertical legs 15, horizontal platform 16 and connecting tie rods 17. All the stations 13 are supported on the frame 14. Near the lower end of the machine is a horizontal bar 18 which extends along the front side of the machine and is mounted by straps 19 to legs 15 of the frame 14. A plurality of forwardly extending arms 20 are secured to the bar 18 and each one of the forwardly extending arms is used at each station. Each arm 20 supports a pair of spool holders 21 comprised of a platform 22 and central upstanding pin 23 upon which a spool 24 of unwaxed thread 25 is supported.

Each station 13 of the machine has at its upper end a forwardly extending spindle 26 upon one end of which a pair of spools 27 and 28 are carried and upon which waxed threads 29 and 30 respectively, are wound up. The rotating spindle 26 is supported in a bracket 31 mounted upon the machine. A pair of rollers 32 and 33 are mounted upon the other end of the spindle 26 where roller 32 is engaged by an endless belt 34 driven by a motor not shown. The belt 34 thus transmits power for providing rotation of the spindle 26 in each station. Idler rollers 35 mounted rotatably free on shaft 36 at one end of an arm 37 move pivotably about a shaft 38 provide-tension means upon that station for maintaining frictional contact of the belt 34 and rollers 32. The shaft 38 is fixedly supported by a horizontal channel iron 39 fastened to the frame 14 of the machine.

In each station 13 the roller 33 is engaged by an endless belt 40 which transmits motion to a roller 41 secured on a shaft 42 of a unit 43.

Upon the front face plate 50 of each unit 43 there is a forwardly extending L-shaped bracket 51 and an upstanding inverted U-shaped frame 52 is mounted upon the end of the bracket 51 for purpose of supporting various con- J trol levers 53 and 54. The U-shaped frame 52 is provided with a pair of pads 55 and 56 which provide support means for adapter brackets 11 and waxing unit 10.

The adapter bracket 11 comprises generally a member having a horizontal extending bar portion 57 at one end of which there is an upwardly extending post 58 and at the other end there is an upwardly extending post 59. Near the upper ends of each of the posts there is a horizontallyextending slot 60 and 61 respectively for receiving therein the pads 55 and 56. An opening 62 extending downwardly from the upper side of each post and into the open slot provides means for receiving a screw 63 extending therethrough and through a threaded opening in each of the pads 55 and 56 of the U-shaped frame 52. The adapter bracket has a pair of sidewardly extending arms 64 and 65 at the lower end front portions thereof respectively. Near the end of each of the arms 64 and 65 there is an opening 66 for receiving a mounting screw 67 therein and which screw is threadedly engaged in the opening 66 of the adapter bracket. The screws 67 provide means for supporting the thread waxing unit upon the adapter bracket 11.

Each waxing unit includes a pair of longitudinally upstanding brackets 75 through each of which a plurality of posts 76 is rigidly secured. A hub 77 is mounted rotatably free on each of the posts 76, each hub including a cylindrically-shaped barrel 78 and a circular flange 79 integral therewith. Each barrel 78 has a diameter equivalent to the size of an opening in a conventional wax spool 80 so that the same may be placed thereupon as shown in FIG. 4 of the drawing. The lower end of the bracket 75 is turned to make a foot 81 having a pair of openings 82 therethrough for receiving screws 83 which extend therethrough and each of which is threaded to be threadedly received within an opening 84 of a bracket 85 which normally supports a thread tensioning unit 86. An intermediate plate 87 is fitted between the foot and bracket 85, the intermediate plate carrying a slot 88 through which thread 25 passes. The tensioning unit 86 is comprised of a pair of plates 89, 91 (see FIG. 6) having corresponding ridged surfaces between which the unwaxed thread 25 passes from the spool 24 to the wax spools 80. As shown in FIG. 6 of the drawing one of the plates 89 of the tensioning unit 86 is fixed and carries a pin 90. The other tensioning plate 91 is pivotable about the pin 90, such action being manually accomplished by means of operation of the lever 53 or 54 which activates a rod 92 between the control lever 53 and a tab 93 formed on the movable tension plate 91.

On the upper part of the machine 12 there is located in each station 13 a counter 100 rigidly mounted upon the frame work of the machine. Each counter includes a drive pulley 101 mounted on a shaft 102 which drives a mechanism within the counter for activating the movement of digits 103, visible within a window 104 of the counter. Each station 13 additionally includes directly over the counter a tension arm 105 pivotable at its one end about a pin 106 mounted upon the framework of the machine. The opposite end of the tension arm carries a thread guide 107 which includes an open slot 108 for receiving thread therein. At an intermediate point between the opposite ends of the tension arm 105 the arm is normally urged upwardly by means of a tension coil spring 109 connected at one end to the tension arm and at the other end connected to a fixed post 110 stationarily mounted upon the frame of the machine.

In operative use a spool of unwaxed thread is placed upon each of the spool holders 21 in each station 13. The unwaxed threads 25 are then unwound from each spool 24 and carried upwardly through thread guides 115 supported upon the lower ends of brackets 85. Threads 25 are then inserted between the plates 89 and 91 of the tensioning units 86 as shown in FIG. 3 of the drawing. The threads then extend upwardly through the slots 88 in the intermediate plates 87 and then pass around one side of horizontal wire rods 116 and thereafter the threads 25 are inserted into a space 117 between one side of flange 79 and one side of wax spools as shown in FIGS. 4 and 5 of the drawing. As will be clearly indicated in FIG. 5 the thread 25 follows a zigzag coursebetween each successive wax spool because it passes on the right and left sides of each successive barrel 78. Such zigzag course provides a greater area of the thread to be coated with wax. After passing the wax spools the threads are carried over the edges of a wire rod 118 as shown in FIG. 3, and it will be noted that there are two sets of three spool units in each waxing unit 10. Each of three spool assemblies handle one thread and as indicated one of the wax threads 30 is carried upwardly on the wire rod 118 and is looped once around the pulley 101. Thus movement of the thread 30 causes the pulley to be rotated thereby imparting a registration of the linear length of thread moving around the pulley 101. This registration is recorded by the counter and may be visibly observed in the window 104 where the numerical digits 103 record the amount. Thereafter the thread 30 is turned upwardly through the notch 108 in the thread guide 107 from where the wax thread 30 is carried again downwardly around a spindle 119 mounted upon the machine 12. The thread 30 is then carried through a thread guide 120 and then to the spool 28 carried upon the rotating spindle 26.

The other thread 29 from the other three wax spool unit is carried from the wire rod 118 around the spindle 119 and directly therefrom through the guide 121 and to the spool 27 carried on the spindle 26 thereby bypassing the counter unit 100. It will thus be apparent that recording the length of the thread 30 being wound upon the spool 28 will automatically indicate like length of thread 29 being wound upon the spool 27. When the recording unit indicates the desired length of thread having been placed upon each spool 27 and 28 the thread is cut, the spools removed and new spools are placed upon the unit 26 and the operation continued as above described. Thus at each station of the machine two wax threads are delivered to a pair of spools upon the spindle 26.

In FIG. 4, it will be readily apparent that the bracket 75 is slightly inclined from a vertical axis for the purpose of causing gravity force upon each wax spool 80 to maintain frictional contact with a thread passing between the wax spool and the flange 79.

In FIG. 1, two stations 13, 13 are shown wherein the station at the left side incorporates the three spool units of the present invention, and wherein the station at the right side carries only a singular wax spool, the latter being conventional. It will be readily apparent upon a comparative study that the bracket 11 brings the waxing unit 10 into a position where it is completely out of the way from the pivotable mechanism 122. It will also be readily apparent that without employment of the adapter bracket 11 the thread waxing unit 10 would interfere with the pivotal member 122. However the bracket 11 positions the relatively larger thread waxing unit 10 further away thereby allowing the member 122 to have the same full swing as is possible in the station employing the singular spool.

Thus there has been shown an improved thread Waxing unit which is readily attachable to a universal thread winder and which does not interfere with any of the original working mechanism of the machine and wherein the thread waxing unit performs a more efficient thread waxing operation as above described.

While various changes may be made in the detail construction it is understood that such changes will be within the spirit and scope of the present invention as it is defined in the appended claims.

What is claimed is:

1. In a thread winding machine the combination of a frame, a plurality of stations supported upon said frame, each of said stations comprising a plurality of spool holders for supporting a plurality of spools of unwaxed threads, a rotatable spindle supported on the frame, power means for rotating said spindle, a pair of spools on said spindle for receiving a waxed thread on each of said spools, a counter on the frame for recording the length of one of said waxed threads wound upon one of said spools on said spindle, a plurality of thread guides and a thread tensioning device for said threads moving between said spools of unwaxed threads and said spools of waxed threads and a thread waxing unit comprising a plurality of waxed spools in contact engagement with each one of said threads.

2. The combination as set forth in claim 1, wherein each of said thread waxing units comprises an adaptor bracket, a pair of diagonally upwardly extending brackets supported by said adaptor bracket, each of said diagonally upwardly extending brackets carrying a plurality of Waxed spools, said waxed spools on each of said diagonally upwardly extending brackets being in frictional engagement with one of said threads for providing a waxed surface to said thread.

3. The combination as set forth in claim 2, wherein each diagonally upwardly extending bracket has a plurality of posts affixed thereto, each of said posts supporting a rotatable hub, each of said hubs comprising a cylindrical barrel having a central opening for receiving said posts and each of said barrels having a flange integrally formed therewith, and each of said hubs supporting one of said waxed spools.

4. The combination as set forth in claim 3, wherein each of said waxed spools has a central opening for being received upon said barrel of said hub, and said thread in frictional engagement with said waxed spools being passed between said flange and one side of said waxed spools for receiving a waxed coating from said waxed spools.

5. The combination as set forth in claim 4, wherein said posts on said diagonally upwardly extending brackets are in longitudinal alignment with each other for supporting said hubs and said waxed spools in longitudinal alignment and said thread being received on a left side of one of said barrels and on a right side of an adjacent hub barrel, then again on a left side of a following adjacent hub barrel to impart a zigzag course to said thread passing through said waxing unit.

6. The combination as set forth in claim 5, wherein each of said stations includes a forwardly extending bracket having a U-shaped frame supported on said forwardly extending bracket, and each of said frames has a pair of pads for engagement with said adaptor bracket, each of said pads having an opening therethrough for receiving a screw, said openings being threaded and said adaptor bracket having means for receiving each of said pads.

7. The combination as set forth in claim 6, wherein said adaptor bracket comprises a longitudinal bar having an upstanding post at each end of said bar, each of said upstanding posts having a horizontal open notch, and opening in the upper end of each of said posts, said openings extending and communicating with said horizontal open slots, said horizontal open slots providing a means for receiving said pads .of said U-shaped frame of said machine, and said longitudinal bar having a pair of sidewardly extending arms, each of said arms having an opening near the terminal end thereof, said openings being threaded for receiving a screw and providing a means for supporting each one of said diagonally upwardly extending brackets of said thread waxing units.

References Cited UNITED STATES PATENTS 1,687,704 10/1928 Anderson 24239 X 1,771,568 7/1930 Becker 118-78 1,915,200 6/1933 Parks 242-18 X 1,950,855 3/1934 Lewis 242-18 2,222,228 11/ 1940 Hitchcock 118-78 2,987,034 6/1961 Redmond 1l8-78 2,998,202 8/1961 Keith et al. 242l8 STANLEY N. GILREATH, Primary Examiner. 

1. IN A THREAD WINDING MACHINE THE COMBINATION OF A FRAME, A PLURALITY OF STATIONS SUPPORTED UPON SAID FRAME, EACH OF SAID STATIONS COMPRISING A PLURALITY OF SPOOL HOLDERS FOR SUPPORTING A PLURALITY OF SPOOLS OF UNWAXED THREADS, A ROTATABLE SPINDLE SUPPORTED ON THE FRAME, POWER MEANS FOR ROTATING SAID SPINDLE, A PAIR OF SPOOLS ON SAID SPINDLE FOR RECEIVING A WAXED THREAD ON EACH OF SAID SPOOLS, A COUNTER ON THE FRAME FOR RECORDING THE LENGTH OF ONE OF SAID WAXED THREADS WOUND UPON ONE OF SAID SPOOLS ON SAID SPINDLE, A PLURALITY OF THREAD GUIDES AND A THREAD TENSIONING DEVICE FOR SAID THREADS MOVING BETWEEN SAID SPOOLS OF UNWAXED THREADS AND SAID SPOOLS TO WAXED THREADS AND A THREAD WAXING UNIT COMPRISING A PLURALITY OF WAXED SPOOLS IN CONTACT ENGAGEMENT WITH EACH ONE OF SAID THREADS. 